My daughter, age 37, has had chronic pharyngitis and sinus inflammation for months. She has been in and out of the doctor s office numerous times, but does not seem to get over these symptoms. She is lethargic, run down, has a poor appetite. She is a non-smoker, but stocks stores with tobacco products. I was wondering if the tobacco could be causing this. What type of doctor should she see to narrow down the cause of these symptoms?